topic Re: removing disk in Operating System - HP-UX

removing disk

Sajjad Sahir — Sat, 08 Mar 2008 11:23:51 GMT

Ioscan out put not showing the follwing disk
but it is present under /dev/dsk directory
I want to remove this disk from my unix system
permanently how is it possible
the problem is there is no ioscan out put of this so i can't find hardware address to remove this disk
c13t0d6

Re: removing disk

Torsten. — Sat, 08 Mar 2008 11:35:26 GMT

If not reported by ioscan - the disk is not there (or failed).

Re: removing disk

Sajjad Sahir — Sat, 08 Mar 2008 11:37:25 GMT

Dear torsten
u mean disk is not there
i am i right
so how i can remove this entry from /dev/dsk
directory

Re: removing disk

Davis Paul — Sat, 08 Mar 2008 13:13:40 GMT

Hi Sajjad,
If there is no ioscan o/p means no need to do anything
Regards,
Davis Paul.

Re: removing disk

TTr — Sat, 08 Mar 2008 13:53:20 GMT

If you are asking how to clear the "NO-HW" lines from the ioscan listing, the only way to do that is to reboot.

To remove the /dev/dsk, /dev/rdsk files for nonexistent devices using rmsf.

If you can not reboot, leave it alone, the "NO-HW" lines do not affect anything.

Re: removing disk

Michael Steele_2 — Sat, 08 Mar 2008 16:50:56 GMT

As mentioned above all good and bad disks will be listed in 'ioscan' with a 'CLAIMED' or 'NO_HW' state.

For older machines its not unusal for disks to come and go and when they go some clean-up is required. In this case someone forgot to remove the old device files. This is not an issue, just a personal decision about how clean you want your house to be.

Use 'rmsf'. See the man page before executing as this may not be the exact syntax of what you want.

rmsf -k -H 0/0/2.4

Where -H 0/0/2.4 is denotes the HW address of the device file that you want to remove.